Chemical Name: CHLORODIMETHYLOCTADECYLSILANE
CAS No.: 18643-08-8
Molecular Formula: C20H43ClSi
Molecular Weight: 347.09
Appearance: Clear liquid
Chlorodimethyloctadecylsilane CAS 18643-08-8
Description
CAS 18643-08-8 Details
Chemical Name: Chlorodimethyloctadecylsilane
CAS No.: 18643-08-8
Molecular Formula: C20H43ClSi
Molecular Weight: 347.09
Molecular Structure:
Appearance: Clear liquid
CAS 18643-08-8 Typical Properties
| Item | Standard | Result |
| Appearance | Clear liquid | Complies |
| B.P(℃) | 145-155 ℃0.005 mm Hg(lit.) | Complies |
| Assay | ≥97% | 98.12% |
What Is Chlorodimethyloctadecylsilane
Core Functions: A highly representative hydrophobic silane coupling agent and surface modifier.
Applications:
Chromatographic Packing Material Modification: This is its most famous application. Used in the production of reversed-phase C18 column packing materials for high-performance liquid chromatography (HPLC).
Hydrophobic Treatment: Used for coating glass, ceramics, mica, and metal oxide surfaces, giving them excellent waterproof, moisture-proof, and stain-resistant properties.
Biomedical: Used to modify the surfaces of biosensors or microfluidic chips, controlling surface wettability and the adsorption of biomolecules.
Precision Electronics: Used in semiconductor processes as a raw material for self-assembled monolayers to adjust surface dielectric properties or adhesion.
CAS 18643-08-8 Packaging and Shipping
25kg/fiber drum
CAS 18643-08-8 Storage
Stored in cool dry ventilated place